Elastic tire for vehicle-wheels.



' BQ M. M: sA.

I ELASTIC TIRE FOB VEHIGLE WHEELS.

APPLICATION FILED MAR. 2, 1908.

Patented Nov. 9,1909.

INVVENTOR B97222 %za7zscl z5 a ATTORNEY 2b Eli whom it may concern:

BENTQ MARTIN'S DE SA, 0F mo DE (KANE ti:

nLAs'rIo Tran non 'vnniennnfns ssaaea- Be it known that I, Bnn'ro Mailings ma SA, a citizen of Brazil, residing at Rio de Janeiro, Brazil, have invented a new and useful Improvement in Elastic Tires, for] Vehicle-Wheels, of which the following is a specification.

This invention relates to improvements in elastic wheels of that character wherein the cushioning meansis disposed in amanner' to boom; of contact with the road surface.

One' of the objects of the invention is to provide a retaining device for'receiving'the cushioning means and disposing a tread por tion withmthe retaining device and upon the cushioning means in a manner to permit free yielding action of the oushioningmeans res onsive to movement of the tread portion wi respect to the retaining device.

Theinvention will be more fullydescribed in connection with the accompanying drawing and will be more particularly pointed out and ascertained in and by the appended claims.

In the drawing Figure 1 is a-view in elevation looking at the tread portion of a wheel equipped with my invention. 7 Fig. 2-

is a fragmentary side elevation of a wheel with partsbroken away. Fi 3 is a sec-- tional view on line 3-3 of Fig. 2. Fig. 4 is a sectional view on line 44 of Fig: 2. Fig. 5 is a sectional view of the retaining device. Fig. 6 is a side elevation of the parts shown in Fig. 5, looking in the direction of the arrow and with one of r the members broken away. 7 is a side elevation of a part in the trea portion. Fig. 8 is a sectional view of the tread holder. p a i Like numerals of reference designate similar parts throughout the diflerent figures of the drawing. 7

As shown the invention includes a telly 1 on which is disposed a retainin device preferabl consisting of two parts esignated by 2 an 3. The parts 2 and 3 form radial] projecting portions or walls between which the remaining parts constituting the invention are disposed. The art 2 may conveniently consist of an ang e ring so that the part 4 thereof can be utilized to secure the member 2 to the folly 1. Bolts 5 may. be

provide e members 2 and 3 with studs 6 I Specification of Letters Patent.

KIWI-163171011 filed 2, 1W3- Serial F6 418913.

Patented Nov. a,

annularreceiving chamber in which cushiom ing' means aire disposed. As shown said cushioning means consist of a plurality of rubber elements, some of which are solid and the'remainder of the pneumatic type. The solid and pneumatic cushioning, elements ma'jr'as shown be alternately disposed in the annular chamber formed by the members 2 ends, the solid element being indicated at 9 andthe 'neumaticelement at 10." I prefer to provi e independent pneumatic elements so that when one of the same becomes do; flated the remainder, to other with the solid cnshi o'ni" I elements, W1 1 'be' relied upon to solid cushiom'ng elements in their circum-.

ferential position and said means engage said elements in a manner to permit of yielding ering' 3 may be clamped to the support t e treadportion. As shown the action thereof or in other wordspermittthe arched elements to be flattened.

shown bolts 12 extend through the members 2 and 3 and through slots 13 formed in said elements 9... The pneumatic elements 10 may consist of an outer sheath memberl t and an inner inflatable member 15, each element 10 being provided with independent means for inflation or deflation as indicated at 16.

A tread portion is provided and is indicated as a whole at 17 and may consist of a tread holder 18 and an elastic tread 19 held thereby. As shown said tread holder 18 is an annular part which fits within the radial walls of the members 2 and 3 and seats upon the solid and pneumatic cushioning elements. Said holder 18 advisably fits snugly between the walls 2 and 3 with a suflicient working clearance and it may he provided with inwardly projectin flanges 20 overlapping the pneumatic e ement 10 laterally as clearly shown in Fig. 3. In order to reduce frictional wear between the radial walls 2 and 3 and the tread holder 18, the former may he provided with packings 21 and 22 seated in, annular ooves 23 and 24: formed in said walls 2 an. In order tot dis plaent of the tread holder 18 with mspect to the walls 2 and 3 said holder may be provided with apertured ears 25 arranged to lie against the sides of the solid cushioning elements 9 in registry with slots 13. By means of this construction the means for holding the solid cushioning elements loosely also serves for limiting displacement of the holder 18.

When the tread portion'is formed in two parts as shown, the elastic element or tread .19 may be held in place by means of projecting annular flanges 26 which may be formed integral with the holder 18.

If desired a suitable non-metallic material such as papier-mach indicated at 27, may be interposed between the tread 19 and the holder 18.

I claim 1. In an elastic vehicle wheel rim, the combination of a felly, a retaining device mounted thereon and comprising an angle ring seated on said fell and a clamping ring secured to said an e ring, a plurality pneumatic of alternately disposed olid and cushioning elements seated in said retaining device, a circular tread holder projecting into said device and seated on said elements, said holder having inwardly projecting angular flanges, and an elastic circular tread member engaged by said holder.

2. In an elastic vehicle wheel rim, the combination of a felly, a retaining device mounted on said felly and comprising laterally disposed radially projecting walls, a plurality of alternately disposed solid and pneumatic cushioning elements seated in said retaining device, a circular tread holder projecting into said device and seated on said elements, and an elastic tread portion engaged and retained by said holder.

3. In an elastic vehicle wheel, the combination of a' retaining device comprising an an le' ring and a clampin ring forming radial y. ro ecting walls, a ternatel disposed sol id and independently in atable cushioning elements disposed between said walls, a tread portion projecting between said walls and seated on said elements, and means engaging said walls, tread portion and certain of said elements to permit radial movement of said tread portion and elements with respect to said walls and prevent relative circumferential movement with respect to said walls, tread portion and certain of said elements.

In testimon whereof I afiix my signature in presence 0 two witnesses.

BENTO MARTINS DE SA.

Witnesses:

J. T. on CARVATHO COSTA, C. BUSGHMANN. 

